Finding the Fourth Proportional to 13,468.62, 18,586.49 and 7,500.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,468.62 : 18,586.49 = 7,500.81 : x
2. Step 2: Convert to fraction form
   13,468.62/18,586.49 = 7,500.81/x
3. Step 3: Cross multiply
   13,468.62x = 18,586.49 × 7,500.81
4. Step 4: Simplify right side
   13,468.62x = 139,413,692.55
5. Step 5: Solve for x
   x = 139,413,692.55/13,468.62
6. Step 6: Final answer
   x = 10,351.00